South Korea to Chicago time conversion
Chicago is 14 hours behind South Korea. After the next clock change (): Chicago is 15 hours behind South Korea.
Time difference with your location
South Korea is 9 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in South Korea to convert it to Chicago on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · South Korea → Chicago
This table converts each hour in South Korea to Chicago on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| South Korea | Chicago | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 10:0010:00 AM -1 day | |
| 01:001:00 AM | 11:0011:00 AM -1 day | |
| 02:002:00 AM | 12:0012:00 PM -1 day | |
| 03:003:00 AM | 13:001:00 PM -1 day | |
| 04:004:00 AM | 14:002:00 PM -1 day | |
| 05:005:00 AM | 15:003:00 PM -1 day | |
| 06:006:00 AM | 16:004:00 PM -1 day | |
| 07:007:00 AM | 17:005:00 PM -1 day | |
| 08:008:00 AM | 18:006:00 PM -1 day | |
| 09:009:00 AM | 19:007:00 PM -1 day | |
| 10:0010:00 AM | 20:008:00 PM -1 day | |
| 11:0011:00 AM | 21:009:00 PM -1 day | |
| 12:0012:00 PM | 22:0010:00 PM -1 day | |
| 13:001:00 PM | 23:0011:00 PM -1 day | |
| 14:002:00 PM | 00:0012:00 AM | |
| 15:003:00 PM | 01:001:00 AM | |
| 16:004:00 PM | 02:002:00 AM | |
| 17:005:00 PM | 03:003:00 AM | |
| 18:006:00 PM | 04:004:00 AM | |
| 19:007:00 PM | 05:005:00 AM | |
| 20:008:00 PM | 06:006:00 AM | |
| 21:009:00 PM | 07:007:00 AM | |
| 22:0010:00 PM | 08:008:00 AM | |
| 23:0011:00 PM | 09:009:00 AM |
Quick conversion examples
These examples convert local times in South Korea to Chicago on 2026-10-21.
Conversion formula: Chicago = South Korea − 14h · South Korea − 15h.
| South Korea | Chicago |
|---|---|
| 6:00 AM South Korea | = 4:00 PM Chicago (-1 day) |
| 7:00 AM South Korea | = 5:00 PM Chicago (-1 day) |
| 8:00 AM South Korea | = 6:00 PM Chicago (-1 day) |
| 9:00 AM South Korea | = 7:00 PM Chicago (-1 day) |
| 10:00 AM South Korea | = 8:00 PM Chicago (-1 day) |
| 12:00 PM South Korea | = 10:00 PM Chicago (-1 day) |
| 3:00 PM South Korea | = 1:00 AM Chicago |
| 5:00 PM South Korea | = 3:00 AM Chicago |
| 6:00 PM South Korea | = 4:00 AM Chicago |
| 8:00 PM South Korea | = 6:00 AM Chicago |
Overlapping meeting hours
The 08:00–18:00 working days in South Korea and Chicago do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
South Korea and Chicago have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | South Korea | Chicago |
|---|---|---|
| 2026 | No clock changes; UTC+9 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2027 | No clock changes; UTC+9 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
| 2028 | No clock changes; UTC+9 all year. | · 02:00 → 03:00 · 02:00 → 01:00 |
At the start of 2026, Chicago is 15 hours behind South Korea. The difference changes during the following periods.
- From 2026-03-08 17:00 South Korea until 2026-11-01 16:00 South Korea, Chicago is 14 hours behind South Korea.
- From 2027-03-14 17:00 South Korea until 2027-11-07 16:00 South Korea, Chicago is 14 hours behind South Korea.
- From 2028-03-12 17:00 South Korea until 2028-11-05 16:00 South Korea, Chicago is 14 hours behind South Korea.
Frequently asked questions
What time is 9 AM South Korea in Chicago?
9:00 AM South Korea = 7:00 PM Chicago (-1 day), using UTC+9 and UTC-5. Choose a date above for the seasonal local time.
Does the time difference between South Korea and Chicago change during the year?
Yes. During 2026–2028: Chicago is 15 hours behind South Korea; Chicago is 14 hours behind South Korea. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in Chicago?
Read the Chicago clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between South Korea and Chicago?
The 08:00–18:00 working days in South Korea and Chicago do not overlap.
What is the time difference between South Korea and Chicago now?
Right now, Chicago is 14 hours behind South Korea. Conversion formula: Chicago = South Korea − 14h · South Korea − 15h.